Lead acid battery



FIG. 1 is a front elevation view of a battery showing the design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

We claim the ornamental design for a lead acid battery, as shown. 